54215688 has 16 divisors (see below), whose sum is σ = 135539280. Its totient is φ = 18071888.

The previous prime is 54215687. The next prime is 54215701. The reversal of 54215688 is 88651245.

It is not an unprimeable number, because it can be changed into a prime (54215687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129470 + ... + 1129517.

It is an arithmetic number, because the mean of its divisors is an integer number (8471205).

Almost surely, 2^54215688 is an apocalyptic number.

It is an amenable number.

54215688 is an abundant number, since it is smaller than the sum of its proper divisors (81323592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54215688 is a wasteful number, since it uses less digits than its factorization.

54215688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258996 (or 2258992 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 54215688 is about 7363.1303125777. The cubic root of 54215688 is about 378.4788868988.

The spelling of 54215688 in words is "fifty-four million, two hundred fifteen thousand, six hundred eighty-eight".